M28W320FCB70N6E NUMONYX, M28W320FCB70N6E Datasheet - Page 62

• Manufacturer Part Number: M28W320FCB70N6E
• Description: IC FLASH 32MBIT 70NS 48TSOP
• Manufacturer: NUMONYX

Specifications of M28W320FCB70N6E

• Format - Memory: FLASH
• Memory Type: FLASH - Nor
• Memory Size: 32M (2M x 16)
• Speed: 70ns
• Interface: Parallel
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-TSOP
• Supply Voltage Range: 2.7V To 3.6V
• Memory Case Style: TSOP
• No. Of Pins: 48
• Access Time: 70ns
• Base Number: 28
• Ic Generic Number: 28W320
• Memory Configuration: 2M X 16
• Interface Type: CFI, Parallel
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 22. Locking Operations Flowchart and Pseudo Code
62/69
01h, D0h or 2Fh
Read Block
Lock States
confirmed?
Write FFh
Write 60h
Write 90h
Locking
change
Write
Start
End
YES
NO
locking_operation_command (address, lock_operation) {
}
writeToFlash (any_address, 0xFF) ; /*Reset to Read Array mode*/
writeToFlash (any_address, 0x60) ; /*configuration setup*/
if (lock_operation==LOCK) /*to protect the block*/
else if (lock_operation==UNLOCK) /*to unprotect the block*/
else if (lock_operation==LOCK-DOWN) /*to lock the block*/
if (readFlash (address) ! = locking_state_expected)
writeToFlash (address, 0x01) ;
writeToFlash (address, 0xD0) ;
writeToFlash (address, 0x2F) ;
writeToFlash (any_address, 0x90) ;
/*Check the locking state (see Read Block Signature table )*/
error_handler () ;
AI04364